Thursday - August 20, 2026
Supersonic whale calls and special relativity
August 18, 2026
PHILADELPHIA, Pennsylvania, Aug. 18 -- The University of Pennsylvania posted the following news:

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Supersonic whale calls and special relativity

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Standing on the sandy, windswept shores of Provincetown, Massachusetts, people may find themselves squinting at the horizon, waiting for a whale to make its grand entrance with a spectacular breach.

On a good day, they might spot a couple. But for a more precise and consistent way to . . .

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